Fifteen people were taken to hospital after the single-vehicle crashes occurred 100 metres apart on the Tekapo-Twizel highway (State Highway 8) about 8.40am, police said. "You're looking -5, -4 [degrees Celsius], foggy conditions - that State Highway 8 should have been closed. There's just a big black sign up by the airfield saying 'dangerous conditions, black ice'. She wanted to see action so travellers were better informed about the road conditions and the highway was better maintained and able to cope with the conditions. Sub-zero temperatures means they freeze, black ice, and you can't see black ice.
